10 knots to miles per hour
11.51 mph
10 kn = 11.51 mph.
miles per hour
11.51mph
10 kn = 11.51 mph
In short
How many miles per hour is 10 knots?
10 kn = 11.51 mph. 1 knot = 1.150779 miles per hour, so the working is 10 × 1.150779 = 11.51.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 knot = 1.150779 miles per hour 10 × 1.150779 = 11.51
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (mph) | Off by |
|---|---|---|
| Whole number | 12 | +0.49221 |
| 1 decimal | 11.5 | −0.00779 |
| 2 decimals | 11.51 | +0.00221 |
Round trip: take 11.51 mph back the other way and you land on 10.0019 kn — a drift of 0.0019 kn. That gap is the rounding, not the conversion.
Frequently asked questions
What is 10 knots in miles per hour?
10 knots is 11.51 miles per hour. 1 knot = 1.150779 miles per hour, so the working is 10 × 1.150779 = 11.51.
How accurate is 11.51 mph?
Rounding to 11.51 mph and converting straight back gives 10.0019 kn, a drift of 0.0019 kn from the 10 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
Knots to MPH Converter
Convert knots to miles per hour — boat speed, wind speed, and aviation.
Open the knots to MPH converter →